#3A090B#3A090B

#3A090B is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.3% C 0.076 H 23.3°. Best body text is #FFFFFF at 17.16:1 contrast (WCAG AA passes).

Color values

HEX	#3A090B
RGB	rgb(58, 9, 11)
HSL	hsl(358, 73%, 13%)
HSV	hsv(358, 84%, 23%)
CMYK	cmyk(0%, 84.5%, 81%, 77.3%)
CIE-LAB	lab(9.95, 23.93, 10.97)
CIE-LCH	lch(9.95, 26.32, 24.63°)
OKLab	oklab(23.3% 0.07 0.0302)
OKLCH	oklch(23.3% 0.076 23.3)
XYZ	xyz(1.9032, 1.1194, 0.4324)
Luminance	0.0112 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A090B #093A38

analogous

#3A0923 #3A090B #3A1F09

triadic

#3A090B #0B3A09 #090B3A

tetradic

#3A090B #233A09 #093A38 #1F093A

square

#3A090B #233A09 #093A38 #1F093A

split-complementary

#3A090B #093A1F #09233A

monochromatic

#1A0405 #1A0405 #3A090B #6F1115 #A4191F

Accessibility & contrast

On white

17.16

#3A090B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#3A090B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A090B

17.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A090B	#FFFFFF	#000000	##FFFFFF
##3A090B	1.00	17.16	1.22	17.16
#FFFFFF	17.16	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17150B

Deuteranopia (green-blind)

#231F09

Tritanopia (blue-blind)

#41000A

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #3a090b;
/* rgb */ color: rgb(58, 9, 11);
/* oklch */ color: oklch(23.3% 0.076 23.3);

Tailwind

colors: {
  custom: {
    50: '#754d4b',
    500: '#3a090b',
    950: '#000000',
  },
}

SCSS

$custom: #3a090b;
$custom-light: #754d4b;
$custom-dark: #000000;

JSON

{
  "hex": "#3a090b",
  "rgb": {
    "r": 58,
    "g": 9,
    "b": 11
  },
  "hsl": {
    "h": 357.551,
    "s": 73.134,
    "l": 13.137
  },
  "oklch": {
    "l": 0.23295,
    "c": 0.07623,
    "h": 23.3
  },
  "luminance": 0.01119
}

Semantic roles & 50–950 ramp

primary

#3A090B

secondary

#277875

accent

#F0E838

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #3A090B

Body copy rendered with the generated semantic roles for this colour.

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